Thrust-bearing.



A. T. KILLIAN.

THRUST BEARING.

APPLICATION FILED IAB.6,1909.

939,269, Patented Nov. 9, 1909.

@[AV/llli ii invention may -be embodied in the form de- UNITED STATESPATENT OFFICE.

ALBERT T. KILLIAN, 0F BUFFALO, NEW YORK, ASSIGNOR, BY DIRECT AND MESNEAS- SIGNMENTS, T0 NATIONAL ANTI-FRICTION ROLLER-BEARING COMPANY, OF BUF-FALO, NEW YORK, A CORPORATION OF'NEW YORK.

THRUST-BEARI-NG.

Specification of Letters Patent.

Patented Nov. 9, 1909.

To all whom it may concern:

Be it known that I, ALBERT T. KILLIAN, a citizen of the United States ofAmerica, and a resident of Buffalo, in the county of Erie and State ofNew York, have invented new and useful Improvement-s in Thrust-Bearings,of which the following is a specification.

My invention relates especially to an antifriction thrust-bearing inwhich radial bearing-rollers are preferably contained between tworoller-races and held in properly spaced relation by separating rollersarranged so as to prevent the bearing-rollers contacting with eachother, and it has for its object, mainly, to provide a hearing whichwill be simple and inexpensive in construction and in which, at the sametime, the friction shall be reduced to a minimum.

Another object of this invention is to provide a roller thrust-bearingin which the use of balls is rendered unnecessary and in which theendwise strain imposed upon the load-sustaining bearing is entirelyeliminated.

Another object of this invention is to provide a roller thrust-bearingwhich can be used either on vehicles or with machinery shafting, thatis, where there is a tendency to endwise motion, this construction beingsuch that no matter how much or how great this endwise motion may be, itwill not alter, injure, or interfere with the efficiency of the hearing.

A further object of this invention is to provide a roller thrust-bearingin which the rollers will be evenly held, and in which the'parts can beassembled and handled as a unltary body.

With these and'other objects inview, the

scribed in this specification and shown in the accompanying drawings, inwhich Figure 1 is a longitudinal sectionalview of my hearing as appliedto the front axle of an automobile; Fig. 2 is an end view with thedust-cap removed; and, Fig. 3 is an end View through the center.

Referring -to the drawings by reference characters, 1 designates an axlewith reduced portion 4, and threaded portion 5, at its end, which is adated to receive washer 6 and nut 7. Fitting oosely on reduced portion 4,is a locking sleeve 2 which has a re recess 13 for purposes hereinafterdescribed.

Bearing rollers 12 are separated by tapering dividing rollers 14 whichare provided at their ends with reduced tapering portions 15 and 16which bear on circular tracks 17 and 18. These spacing rollers 14 aresmaller in diameter than the main rollers so that they receive none ofthe thrust-strain but act solely as freely-supported spacing means.

In order to assemble the parts, I place within the locking sleeve 2 theinner rollerrace, and within said roller-race a bearingroller 12, andthen place a dividin roller next to said bearing-roller. I then p aceanother bearing-roller within the race next to the dividing roller, andthen another dividing-roller next to this bearing-roller, and repeatthis operation until the circular series The is completed. I then putthe remaining roller-race within the locking sleeve in contact with thebearing-rollers, and then slip the removable circular flange 19 over theend of locking-sleeve until it abuts shoulder 9, fasten the samesecurely thereon, the proportions of the parts being such as to providesufiicient clearance between-the exterior sides of the roller-races andthe interior sides of the flanges of the locking sleeve to permit theroller-races to move and rotate freely therein. The thrust-bearing isthen inserted in the outer end of hub 20 and is held in place by stopring 21'which is screwed in until it approaches closely to shoulder 22on the outer roller-race and so located as to maintain the same amountof clearance as between flanges of the locking sleeve. The hub isslipped upon the axle and is held in place thereon by washer 6 and nut7. I then screw on the end of the hub a cap 23 which excludes dust fromthe bearing.

The operation of this invention is as follows: When the hub is rotatedit will have a tendency to move longitudinally and thereby bring intoaction the trust-bearing. Should the hub have an outward movement, itwill cause the inner roller-race member to revolve on the bearingrollers in the same direction as the hub, while the outer rollerracemember contacts with the. inside of outer flange 19 of thelocking-sleeve andremains stationary with the axle.

hub have an inward movement, it will cause I tionary with the axle.

tween said roller-races and the lockingsleeve, so that when the hubengages the roller-race both will be free to rotate without anyfrictional contact.

24 is a dust-proof washer to exclude dust from the bearings. It is anannular trough of pressed sheet-steel fitted with felt and closed at itsouter edge. e

Having thus fully described my invention, whatI claim as new, and desireto secure by Letters Patent, is

1. In combination with a shaft or axle I and a relatively rotatable hubthereon, a

locking-sleeve on the axle provided with annular radial flanges formingchannel, one of the flanges-being removably fastened on the sleeve andthe inner corners Should the an annular of the channel being oppositelybeveled, a pair of raceway rings inc osed in said channel and havingtheir inner corners beveled off, these beveled surfaces being shorterthan the cooperating beveled surfaces in the aforesaid channel, theadjacent faces of said raceways being provided with annular grooves, andantifriction rolling elements in said grooves, the hub being providedwith shoulders engaging the outer sides of said annular raceways orrings, for the purpose set forth.v

2. In combination with a shaft "or axle and a hub thereon, of alocking-sleeve on the axle provided with annular flanges forming achannel, independently rotatable raceway-rin s in said channel andadapted to frictional y engage the opposite flanges of the sleeve,rolling elements between said rings, and shoulders on the hubadaptedtofrictionally engage the outer edges of said rings, for the purpose setforth.

3. In combination, hub thereon, a pair of rings surrounding the axle andhaving engagement therewith and also with the hub and having theiradjacent faces provided with annular grooves and tracks whose faces areopposite y beveled, a series of radially 'arra-n ed thrust receivinfirollers, and a series 0 radially arrange spacing-rollers smaller indiameter than the thrust-rollers and having reduced end-extensionsrunning on said tracks, for the purpose set forth.

In testimony whereof I hereunto aflix my signature in the presence ofwitnesses this 22nd day of February 1909.

ALBERT T. KILLIAN.-

a shaft anda rotatable-

